1221341462 has 16 divisors (see below), whose sum is σ = 1999095552. Its totient is φ = 555006120.

The previous prime is 1221341449. The next prime is 1221341479. The reversal of 1221341462 is 2641431221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154703 + ... + 162405.

It is an arithmetic number, because the mean of its divisors is an integer number (124943472).

Almost surely, 2^1221341462 is an apocalyptic number.

1221341462 is a deficient number, since it is larger than the sum of its proper divisors (777754090).

1221341462 is a wasteful number, since it uses less digits than its factorization.

1221341462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14923.

The product of its digits is 2304, while the sum is 26.

The square root of 1221341462 is about 34947.6960900143. The cubic root of 1221341462 is about 1068.9212238601.

Adding to 1221341462 its reverse (2641431221), we get a palindrome (3862772683).

The spelling of 1221341462 in words is "one billion, two hundred twenty-one million, three hundred forty-one thousand, four hundred sixty-two".